Downlink channel design for LTE with low latency

    公开(公告)号:AU2015321923A1

    公开(公告)日:2017-03-09

    申请号:AU2015321923

    申请日:2015-08-27

    Applicant: QUALCOMM INC

    Abstract: An example data structure for managing user equipment communications in a wireless communications system is presented, as well as methods and apparatuses configured to implement the data structure. For instance, the data structure may include a downlink subframe comprising two slots and including one or more quick downlink channels having a single-slot transmission time interval. In addition, the example data structure may include one or more resource element blocks each comprising one or more resource elements into which a frequency bandwidth is divided within one or both of the two slots, wherein each of the one or more resource element blocks comprises a control channel region or a data channel region. Furthermore, the example data structure may include one or more resource grants, located within one or more control channel regions, for one or more user equipment served by the one or more quick downlink channels.

    Estructura de canal de control físico de enlace descendente en sistemas de baja latencia

    公开(公告)号:ES2905592T3

    公开(公告)日:2022-04-11

    申请号:ES18722859

    申请日:2018-04-18

    Applicant: QUALCOMM INC

    Abstract: Un procedimiento (1300) para comunicación inalámbrica en un sistema que admite una primera duración de intervalo de tiempo de transmisión, TTI, y una segunda duración de TTI que es mayor que la primera duración de TTI, que comprende: identificar (1305) una región de control de un TTI de la primera duración; determinar (1310) una estructura de elemento de canal de control, CCE, para la región de control, basándose la estructura de CCE, al menos en parte, en un tipo de señal de referencia, comprendiendo el tipo de señal de referencia una señal de referencia de desmodulación, DMRS; y supervisar (1315) la región de control del TTI de la primera duración para determinar información de control de enlace descendente, DCI, de acuerdo con la estructura de CCE determinada.

    Dynamic time division duplexing
    104.
    发明专利

    公开(公告)号:AU2017332670B2

    公开(公告)日:2022-04-07

    申请号:AU2017332670

    申请日:2017-09-15

    Applicant: QUALCOMM INC

    Abstract: Methods, systems, and devices for wireless communication are described. A base station may allocate resources for communication with a user equipment (UE). The resources may include one or more subframes, and each subframe may include one or more shortened transmission time intervals (sTTIs). Each sTTI may be assigned a transmission direction according to a time division duplex (TDD) pattern. Based on traffic needs and/or interference from other UEs and/or base stations, the base station may determine to modify the TDD pattern used for communication. Accordingly, a base station may transmit an indicator in a control message or control region of a TTI or sTTI, to indicate to users that a transmission direction of an sTTI in the TDD pattern is being changed. Subsequently, a user may communicate with the base station according to the reconfigured TDD pattern.

    Coexistencia de baja latencia confiable y otros servicios en una red inalámbrica

    公开(公告)号:ES2882173T3

    公开(公告)日:2021-12-01

    申请号:ES17752233

    申请日:2017-08-03

    Applicant: QUALCOMM INC

    Abstract: Un procedimiento (700) de comunicación inalámbrica por una estación base, que comprende: reservar (702) una primera región de un conjunto de recursos a un primer usuario para al menos una primera transmisión de enlace ascendente que se relaciona con un primer tipo de servicio, en el que la primera región reservada del conjunto de recursos se dedica al primer tipo de servicio; recibir (704) la primera transmisión de enlace ascendente en la primera región; asignar dinámicamente (706) recursos en una segunda región no reservada del conjunto de recursos para al menos una segunda transmisión de enlace ascendente que se relaciona con el primer tipo de servicio; y recibir la segunda transmisión de enlace ascendente en la segunda región en base a la asignación.

    Multiple transmission time interval coexistence

    公开(公告)号:AU2017263554B2

    公开(公告)日:2021-08-05

    申请号:AU2017263554

    申请日:2017-05-12

    Applicant: QUALCOMM INC

    Abstract: Methods, systems, and devices for wireless communication are described. Different transmission time interval (TTI) durations may be supported and configured to coexist with one another. A set of TTIs with a relatively short duration may overlap in time with longer duration TTIs. Boundaries of TTIs with a relatively short duration may be configured to align with boundaries of relatively longer duration TTIs. For example, TTIs that are a Long Term Evolution (LTE) subframe, an LTE slot, and a duration of two LTE symbol periods may be supported. Two-symbol period TTIs may align with or be embedded within slot-duration TTIs, which, in turn, may align with or be embedded within a subframe. In some examples, one or more symbol periods of a subframe may be designated as a gap between two-symbol TTIs within the subframe, or such symbols may be merged with a two-symbol TTI within the subframe.

    ULTRA-LOW LATENCY LTE UPLINK FRAME STRUCTURE

    公开(公告)号:AU2019203669B2

    公开(公告)日:2021-05-20

    申请号:AU2019203669

    申请日:2019-05-24

    Applicant: QUALCOMM INC

    Abstract: Various aspects described herein relate to communicating in a wireless network. A transmission time interval (TTI) for an uplink control channel transmission within a subframe is determined, wherein the TTI comprises of a number of symbols which are a subset of a plurality of symbols in the subframe. Uplink control data can be transmitted over the uplink control channel during the TTI. In embodiments, transmitting the uplink control data comprises transmitting the uplink control data with a cyclic shift used to indicate a scheduling request for a resource grant of radio resource control (RRC) configured resources. / * -z I * / * - / (NI / * *' II, - \ * I 1W 'I / / 'I I \i I '1 -~ I I~ 'S If) I j -- *.**** I *" I L1~) * / tn 0 * I / (NI 44! L-\ I Id 2 -A If) * * ~- e / / 'S 'S

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